Robert G Hudson , NH September 30, 2014 Appliance: Maytag Microwave Hood Combo MMV4205BAB14 Maytag Microwave Mmv4205bab14: Previously replaced microwave controller started to to have display degradation. How to replace Asy Pcb Parts. Did an online chat with an Appliance Parts representative who verified that the product was still under warranty and he express shipped the replacement to me. It was a straight forward install and the Microwave was back working as it should. Appliance Parts stood behind their parts and provided great support in providing a replacement. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes